23 #define CHECK_LEN(header, pp, plen, len) \  macro
27     (!CHECK_LEN(header, pp, plen, len) ? 0 : (long) ((pp) += (len)), 1)
40         if (!CHECK_LEN(header, p, plen, 1)) return 0;  in extract_name()
46             if (!CHECK_LEN(header, p1 ? p1 : p, plen, extrabytes)) return 0;  in extract_name()
66             if (!CHECK_LEN(header, p, plen, 1)) return 0;  in extract_name()
94             if (!CHECK_LEN(header, p, plen, (count - 1) >> 3)) return 0;  in extract_name()
113             if (!CHECK_LEN(header, p, plen, l)) return 0;  in extract_name()
240         if (!CHECK_LEN(header, ansp, plen, 1)) return NULL;  in skip_name()
254             if (!CHECK_LEN(header, ansp, plen, 2)) return NULL;  in skip_name()
273     if (!CHECK_LEN(header, ansp, plen, extrabytes)) return NULL;  in skip_name()
335         if (!CHECK_LEN(header, p, plen, 0)) return crc; /* bad packet */  in questions_crc()
446             if (!CHECK_LEN(header, p, qlen, INADDRSZ)) return 0;  in do_doctor()
591                     if (!CHECK_LEN(header, p1, qlen, 0)) return 0; /* bad packet */  in extract_addresses()
653                             if (!CHECK_LEN(header, p1, qlen, addrlen)) return 0; /* bad packet */  in extract_addresses()
671                     if (!CHECK_LEN(header, p1, qlen, 0)) return 0; /* bad packet */  in extract_addresses()
820             if (!CHECK_LEN(header, p, qlen, INADDRSZ)) return 0;  in check_for_bogus_wildcard()